Dirigible headlight.



D. L. HARR'ELL. DIRIGIBLE HEADLIGHT. LIGATION FILED JULY 7, 1910.

APP

Patented Mar. 7, 1911.

1 Fez-r la- HEA ED L. EAR-BELL, OF SUFFOLK, VIBGENIA.

historians HEADLIGHT.

@fififiilfi Y .spplication filed July 7,

To all whom it may concern:

Be it known that 1, DAVID L. HAnnnLL, a citisaenot the United States, residing at Sufilolk, in the county of Nanseinond and 5' State or Virginie, have invented certain new and useful Improvements in Diri gible Headlights, of which the following is a specification.

This invention relates to improvements in o head-lights.

The object of the invention is to provide a'simple, effective and economical construction whereby a head-light is automatically turned as the vehicle rounds a curve, the

5 movement being imparted by a substantially flexible connection between and the truck 01" the vehicle.

A further object of the invention is to provide a connection between the headolight. and the locomotive, or other vehicle which will yield to the jumping or bouno inn; the same, and yet have sutlicient rigidity to impart the necessary movement from the truck to the head-light when the vehicle. rounds a curve.

-The invention also relates to the specific details of construction and arrangement 0 parts which will be hereinafter described,

end particularly pointed out in the claims.

0 In the drawings: igure 1 is a perspective view of a locomotive illustrating the appl1-- cation of my invention. Fig. 2, is a side elevation of my invention the front part of a locomotive and the truck being conven- 5 tionallyillustrated. Fig. 3 is s top plan view. Fig. ,4: is a det-ailsection on the line The same numerals refer to like parts in all the figures. i

o 1 indicates e locomotive on the top and near the front of which is a platform 2. To the platform is rigid y attached a plate 3, provided with a vertically disposed pin 4-. the latter being located at a point some 5 distance from the center of the platform as shown in Fig. 2. Pivotally mounted on the pin 4-, is a base ('3, having a' forwardly cxtoudederm 7. The head-light 8, is atuched to this base and is adapted to turn 0 therewith.

On the'iront of the locomotive is secured by bolts 9, a plate 10, which is formed on one edge with a. curved notch 1.1, to fit 'ly around the 1L2 et a number usually e f l construction serves to brace plate Specification of Letters Eatent.

the head-light eyed a locomotive.

lntented liter. *2, little 1910. Serial 1%. 570,798.

, against lateral strain during the operation of the connections. i

- Projecting forwardly of the plate 10, are

,two horizontal bearings 13, in which a vertical shaftii is mounted. The lower end of the shaft tits in a step bearing 14. and it is held therein by a collar 1& which bears on the under side of one of the bearings 13. On the upper end of the shaft 1% is a rearwurdly projecting arm .which is split at its outer free end, the latter being perforated to receive a screw 16, by means of which the arm may be clamped onthe shaft. The, inner end of the rearwardly )I()]Q(Zil1lg arm is formed wlth a series of openings 17 any one of which is adapted to receive the threaded stem 18, of :1 universal jointltl, a nut engaging said stem to hold the joint in position on the arm. The up per end of the stem is formed with a concave seat- 20, in which fits a ball 21, forminga. port of the joint. The ball 21, is attached to a connecting link 22, interposed between v the arms 7 and 15. 611 the opposite end of the link is a ball 23. which fits into a con cave seat in a head 24, of a universal joint, the stem of the head 2%, fitting in one of a series of openings 25, in the arm 7 An arm 27 is secured to the lower end of the shaft 14, and is substantially at right angles to the position of the rearwardly extending arm 15. The arm 27, is split at one end, the latter being perforated transversely for the reception of a screw 29, by means of which it is clamped to the shaft. ihe 0pposite end-0t the arm is formed with a series of perforations, through any one of which passes the threaded stem of a uni versal joint 30. The upper end of the stem is formed with a head having a concave seat for the reception of a ball on the-end of a connecting rod 32. The connecting rod extends rearwardly over the top of the cowoatcher of the locomotive and then'downwardly towardone side to the outer end of the bolster 33 of the truck 34. A universal necting rodand the truck.

in operation, assuming the locomotive is to round a curve indicated by the arrow (1,

it follows that the truclrwill turn, correbe drawn in thereby turning the shaft island through the arms '3 it? end the linlcZQ will turn 4 the head-light in the direction of the errow joint 35, connects the inner end of the conspondingly, hence the connecting rod 32 will the direction of the arrow 1; y

0, and thereby direct the light around the curved track. Obviously if the track should i be curved in the opposite direction, the con ections will so turn the head light as to j correspondingly direct the light. By locating the pin at to one side of the center of the head light a greater amplitude of movevment results, which insures the turning of During the travel of the locomotive, it necessarily follows there will be considerable jolting between the boiler and the truck, and it is highly important that the connecting points between the various levers and arms be so arranged as to permit sufiicient fleXi bility to prevent breal'iing and undue wearing'of the parts. Hence lprovide the universal joints described. It is furthermore necessary to provide means for adjustingj the head-light to accommodate sharp curves. j j,

the parts to accol'nn'mdate the invention to various size locomotives. It will be seen tance above the upper hearing 13, the arm that by' extending the shaft 14, some disj 15 can be vertically adjusted, while the openings in the arms 7, 15 and 27 will permit of j the proper adj ust-ment of the connections to effect the proper revolving of the head l light.

lVhile I have described my invention in j connection with a locomotive, it is apparent that the same can be used in connection with l a power-driven car, such as .a streetcar, an automobile, or any other vehicle in which the forward pair of trucks or wheels oscillate about a center. j I realize that considerable variation is possible in the details of construction and l arrangement. of parts without departing l from the spirit of my invention, and I there- I fore do not intcnd'to limit myself to the spel cilic form shown and described. I

What I claim is:

1. In combination, a head-light, a truck, a vertical shaft, a connection between said shaft and the head-light, an arm on said vertical shaft, a connecting rod, a universal joint connecting one end of said connecting rod to said arm, and a second universal joint 1 connecting the other end of theconnecting rod to the truck. j

2. In combination, a head-light, a truck, a, vertical shaft, an arm on the vertical shaft, j

a universal joint connection between said shaft and the head-light, a second arm on said vertical shaft, a connecting rod, a universal joint connecting one end of said connecting rod to said arm, and a second universal joint-connecting the other end of the connecting rod to the truck.

3. In combination, a head-light, a truck, a vertical shaft, an arm extending from the upper end of said shaft, a link, universal joints at the ends of the link, one connecting the link to the arm and the other connecting the link to the head-light, and connections between the shaft and the truck whereby the shaft will be turned b T the turning movements of the truck.

In, combination with a locomotive ineluding a truck and head-light, a base on which the head light is supported, said base having a 'orwardly projecting'arm formed with a series of perforations, a pin located to one side of the center of the head-light and on which the base is pivotally mounted, a vertical shaft on the front of the locomotive, an arm extending rearwardly therefrom and formed with a series of perforz tions,.a link connecting said arm and the forwardly projecting arm of the base, universal joints at opposite ends of the link and including stems adapted to pass through the perforatimis in the arms. an arm near the bottom of theshaft, said latter arm being at substantially right angle to the previously mentioned arm on said-shaft, and a connection between said lower arm and the truck.

5. In combination, a locomotive including a truck, head-light andforwardly extending stem on the front, the head-light being pivotally mounted to one side of its center and provided with an arm, a plate provided with a seat to engage the stem, means for securing the plate adjacent the stem. hearings projecting from the plate, a vertical shaft mounted in said bearings, upper and lower arms secured to said shaft and arranged substantially at right angles to each other, a connection between the upper arm and the arm on the head-light, and a connection between the truck and the lower arm.

In testimony whereof I allix my signature in presence of two witnesses.

DAVID L. HARRELL. lVitnesscs J ULIA R. PHILLIrs, HERMAN J onus. 

